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Pierre Osteil

@pierreosteil.bsky.social
723 followers 316 following 92 posts

Developmental & Stem Cell biologist working on mouse early embryo, in the Chazaud lab in Clermont-Ferrand, France. Teaching #devbiol & #bioinformatics at UCA. CV: 🇨🇵>🇦🇺>🇨🇭>🇨🇵 Discover the DICE team: www.igred.fr/en/team/dice

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Reposted by Pierre Osteil
Jean Léon Maître @maitrejl.bsky.social · 06/10/2026
📣Our department is hiring a new group leader!📣 Want to start your team in a vibrant scientific environment in the center of Paris? I was very lucky to do that 10 years ago, reach out if you have any question. Apply by December 18th: jpi-recruitment-curie-umr3215-u934.curie.fr
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John Stott @jpsastro.bsky.social · 24/09/2026
Had a UKRI funded grant proposal rejected at the "AI triage stage". "This AI-based triage was used only to identify approximately 50% of the strongest proposals to take forward to full human review." 🧪 #academicsky
I am writing to let you know that, unfortunately, your application was not successful.

Review process

As part of the initial triage of the 179 proposals submitted to this call, each was assessed using an AI-based review. Every proposal was read independently by several different AI models against the same seven criteria used to shape this call (including cyber security relevance, research quality and novelty, importance of the problem addressed, feasibility of the project plan, likely outputs and impact, value for money, and responsible research practice), with each model asked to give a score and a written justification with supporting quotations from the text. To guard against any one model's idiosyncrasies, we also ran a second, independent process in which different AI models debated the merits and weaknesses of each proposal before reaching a judgement, again against the same criteria. Scores from both processes were combined to produce an overall ranking. 

This AI-based triage was used only to identify approximately 50% of the strongest proposals to take forward to full human review.  Projects selected for funding were drawn from those that progressed to the full human review stage. We recognise that AI-assisted assessment is a new and evolving part of the review process, and we are continuing to evaluate how well it aligns with the judgements of human reviewers on this call. We will soon produce a document detailing our method, so that others can build upon it and improve it.

Feedback on your application

Your application was not selected to progress beyond the AI triage stage.  To provide transparency on the outcome of this assessment, we are sharing below the scores (out of 5) from each of the two AI review processes described above, together with the mean score across the two processes.
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Young Embryologist Network @yen-network.bsky.social · 17/09/2026
The YEN Committee is looking for new members! 📣📣 Interested in co-organising the 2027 Conference? Email us at youngembryologistnetwork@gmail.com. We’re excited to hear from you!
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Floris BOSVELD @florisbosveld.bsky.social · 11/09/2026
Join us for the symposium Morphogenesis: Where Form Takes Shape Oct. 27-28 Institute Curie Paris Free attendance, but registration is required. Short talks and posters will be selected from submitted abstracts. Abstract submission deadline: Oct. 10, 2026.
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Kate Cavanaugh @katecavanaugh.bsky.social · 10/09/2026
Absolutely ecstatic to share that WE GOT THE COVER!!! 🥹🎉 Seeing this on NCB's cover feels surreal. So much time, science, and teamwork went into this project, and I couldn’t be more excited to see it celebrated like this. A very, very happy day for this really really old and grown embryo 🐭🧫💥
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Leonid Schneider @forbetterscience.bsky.social · 10/09/2026
Congratulations to Elsevier on this insanity my colleague found. Is anything in this clinical trial from Spain and UK real? www.cell.com/the-innovati...
cell.com
Quantum evidence of nonlocal consciousness during clinical death
If consciousness can operate under quantum principles, then the boundaries between life, death, and cognition are far more permeable than current science allows. In the first large-scale, randomized, ...
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Franck Ramus @franckramus.bsky.social · 31/08/2026
IA et éducation : le piège des devoirs faits par ChatGPT. S’ils délèguent leurs devoirs à la maison à l’intelligence artificielle, les élèves risquent de ne plus rien apprendre. Mais un meilleur usage offre d’autres possibilités. Ma nouvelle chronique dans l'Express:
lexpress.fr
IA et éducation : le piège des devoirs faits par ChatGPT, par Franck Ramus
S’ils délèguent leurs devoirs à la maison à l’intelligence artificielle, les élèves risquent de ne plus rien apprendre. Mais un meilleur usage offre d’autres possibilités.
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Bon Pote @bonpote.com · 27/07/2026
Beaucoup de bla-bla et de mensonges sur la lutte anti incendie, donc Bon Pote a analysé les votes par parti depuis 2022 à l’Assemblée nationale. Désormais, vous savez qui se bat vraiment pour les pompiers et notre survie. À partager massivement !
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Pierre Osteil @pierreosteil.bsky.social · 27/07/2026
De @bonpote.com
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John De Vos @jdevos.bsky.social · 20/07/2026
📣 SAVE THE DATE! The 8th FSSCR Meeting will be held in Paris from Tuesday 11 to Thursday 13 May 2027. As usual, our scientific committee is curating an exceptional lineup of prestigious speakers (to be announced soon) from some of the most renowned research centres. STAY TUNED. #FSSCR #StemCells
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CosmicRami 🏳️‍🌈🏳️‍⚧️ @rami.spaceaustralia.com · 20/07/2026
The Australian Bureau of Statistics (ABS) put out a little infographic for International Moon Day. It compares the diameter of Australia to the diameter of the Moon. This always throws me because in my mind, the Moon is actually bigger!
Infographic showing drawings of Australia and the Moon side by side. Their respective diameters are annotated (4000 km vs 3400km). The population of Australia is stated as 28M people while it is 0 people o the Moon.
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Society for Developmental Biology @socdevbio.bsky.social · 10/07/2026
A 10.5 day old mouse embryo, whole mount immunofluorescence, neurofilament (green 💚) and TFAP2a (red ❤️) 📸 Image credit: Riley McMahon (Children's Medical Research Institute) #FluorescenceFriday #DevelopmentalBiology #Neuroscience #Immunofluorescence #Microscopy #ScienceArt✨ 🧬
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Pierre Osteil @pierreosteil.bsky.social · 06/07/2026
I am mostly looking for high quality movies, to show gastrulation.
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Pierre Osteil @pierreosteil.bsky.social · 06/07/2026
I am setting a dev bio course for next year, and this is the kind of material I am looking for. And also telling the students about the challenges you faced. Would you share a link towards the movie?
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Pierre Osteil @pierreosteil.bsky.social · 01/07/2026
Bon ben je vais aller jeter les 3 livres que j'ai. Quelle honte. Je suis tellement déçu...
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Jean Abbiateci @jeanabbiateci.bsky.social · 29/06/2026
Dans @philomag.com (mensuel dans lequel il tient une chronique), Etienne Klein répond sur le perte de son doctorat et les révélations de plagiat dans toute sa production. L’interview, menée par le directeur et le rédacteur en chef, est assez pugnace. À lire ici ⤵️ www.philomag.com/articles/eti...
philomag.com
Étienne Klein : “J’ai manqué d’intégrité”
Le physicien Étienne Klein, chroniqueur à Philosophie magazine depuis 2023, vient de se voir retirer sa thèse de doctorat en philosophie des sciences pour…
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Levayer Lab @levayerr.bsky.social · 26/06/2026
Un pétition du collège des sociétés savantes pour mettre en avant le rôle de la recherche dans la campagne politique à venir et rappeler le sous investissement chronique en France depuis 20 ans. N'hésitez pas à faire ciculer recherche-publique-2027.fr
recherche-publique-2027.fr
Recherche Publique 2027 – Appel des scientifiques pour la place de la recherche dans la société
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Development @dev-journal.bsky.social · 19/06/2026
The notochord: development, disease and stem cell-based modelling In this Review, Julie Warin and colleagues discuss how #DevBio and #StemCell studies of the notochord can reveal key insights into spine formation and intervertebral disc development and maintenance. doi.org/10.1242/dev....
Schematic of the mouse embryonic node at the late bud stage, showing ventral and sagittal views. The diagram labels the pit, crown, motile cilia, nascent notochord, and surrounding progenitor cell populations, with arrows indicating cilia rotation and cell movement. Different tissues and cell types are color-coded and identified in a key.
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Julien Gossa @juliengossa.cpesr.fr · 17/06/2026
Recruter des profs ? « Suicidaire ». Soigner notre population ? « on va dans le mur » Alors que détruire notre modèle social pour déverser du pognon sans contrôle ni contre-partie dans la dernière techno à la mode, ça n'est ni suicidaire, ni aller dans le mur.
publicsenat.fr
Zéro suppression de postes de professeurs serait « suicidaire », considère le ministre de l'Éducation nationale, interpellé sur la carte scolaire
Durant les questions d’actualité au Sénat, le ministre de l'Éducation nationale a été interpellé à plusieurs reprises sur la carte scolaire et les suppressions de postes dans l’enseignement.
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Pierre Osteil @pierreosteil.bsky.social · 05/06/2026
Là on a rien fait pour le coup.
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Pierre Osteil @pierreosteil.bsky.social · 05/06/2026
Just cracked some eggs with @charleneguillot.bsky.social team, preparing next year practical @igred.fr . It will be fun !
Picture of Twin Chicken embryo. Picture of normal chicken embryon at 10 somites stage.
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Antoine Molaro @antoinemolaro.bsky.social · 21/05/2026
We got to hear from our newest recruits - PIs in the making - exciting and cutting edge research questions!!! @abdouak.bsky.social @bertillem.bsky.social @pierreosteil.bsky.social
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Antoine Molaro @antoinemolaro.bsky.social · 21/05/2026
Here we go! @igred.fr days! A time to reflect on our achievements and think about the future of this great research institute! #ProudPI
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Society for Developmental Biology @socdevbio.bsky.social · 08/05/2026
✨ A developmental biology classic! Somitogenesis of a chick embryo 🐣 is lighting up in this fluorescent HCR staining. The notochord (Chordin 🟡) and somites (PAX7 💎) are labelled. 🔬 📸 credit: Tatiane Kanno #FluorescenceFriday #devbio
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Christian Mosimann @chrmosimann.bsky.social · 08/05/2026
*** GRC Developmental Biology 2027 - Jan 17-22 @ Renaissance Tuscany Il Ciocco Resort *** Join us for a fabulous 2027 Gordon Conference on all things #devbio & the trainee-led GRS! More info on registration, abstract submission, et al., here: www.grc.org/developmenta... #GRCDevBio2027 🧬🐭🐟🪰🌱❤️
Flier for the Gordon Research Conference and Gordon Research Seminar 2027 on Developmental Biology, held at the Renaissance Touscany Il Ciocco Resort in Italy, January 17-22 2027. List of speakers, organizers, and tag line of Organizing Principles of Growth, Form, and Regeneration Driving Transformative Applications.
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Alexis Verger 🧬🧫🧪 @alexis-verger.cpesr.fr · 29/04/2026
encéphalogramme désespérément plat #ESR #VeilleESR Dépenses R&D en % du PIB 1996-2023 pour la France 1996 2.23% 2023 2.18% 🥴
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Michalis Averof @michalis-averof.bsky.social · 19/04/2026
These images show live embryos of animals (jellyfish, crustacean, worm, sea urchin, sea squirt, beetle) and one of animals closest single-celled relatives. They were captured taking advantage of fluorescent proteins localised on the outer membrane of cells, allowing us to observe cell outlines. 1/9
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Joshua Frenster @joshifrenster.bsky.social · 01/04/2026
🥳 I am happy to share our latest manuscript published in @natcellbio.nature.com We use #Gastruloids to study #CellCompetition during early mammalian development and find not only that this is highly pronounced in our system but also tightly restricted in time. (1/12) www.nature.com/articles/s41...
nature.com
Mosaic gastruloids reveal a temporal restriction for developmental cell competition - Nature Cell Biology
Frenster et al. utilize mosaic mouse gastruloids as a model of cell fitness and competition, identifying a temporal window between primed pluripotency and early gastrulation during which cell competit...
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Pierre Osteil @pierreosteil.bsky.social · 28/03/2026
Peut-être mais pas dans un futur proche. Et l'IA est déjà présente dans nos évaluations. Donc les solutions pour le moment sont celles-ci. En tout cas je n'en voit pas d'autre et, en tant qu'enseignant, j'aimerais avoir des pistes.
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Pierre Osteil @pierreosteil.bsky.social · 28/03/2026
Bien d'accord. Mais l'examen par présentations orales ou devoirs sur table va redevenir la norme. Fin des devoirs à la maison. Par contre je ne vois pas comment enlever les notes.
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Pierre Osteil @pierreosteil.bsky.social · 28/03/2026
Je suis d'accord sur le principe, les approches par compétences peuvent être une alternative mais dans un monde où les places sont limitées en Master, comment ferions-nous pour sélectionner les 400+ candidatures, chaque années, sans les notes?
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David Ho @davidho.bsky.social · 27/01/2026
The Trump regime got rid of 10,109 PhDs in science and related fields, representing 14% of the total number of PhD scientists in the federal workforce.
science.org
U.S. government has lost more than 10,000 STEM Ph.D.s since Trump took office
A Science analysis reveals how many were fired, retired, or quit across 14 agencies
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Paul Knoepfler @stemcells.bsky.social · 06/03/2026
Good news for a Friday. Early encouraging @UCDavisHealth trial data on cell therapy for spina bifida ipscell.com/2026/03/earl... #stemcells #regenerative #medicine
ipscell.com
Early encouraging UC Davis trial data on cell therapy for spina bifida - The Niche
Stem cell biologist discusses a new Lancet paper describing early results on a cell therapy for spina bifida.
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Denis Duboule @denisduboule.bsky.social · 27/02/2026
Vendredi prochain 6 mars à 10h, début de mon cours 2026 @college-de-france.fr. Les relations conflictuelles entre les variations de l’ADN et l’évolution des structures🤓 L’ADN; cause proximale ou cause ultime? 🤔 Entrée libre, sortie libre! Amis Parisiens, 🙏RT 🤘
Picture J. Zakany
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Pierre Osteil @pierreosteil.bsky.social · 14/02/2026
elifesciences.org/articles/110...
elifesciences.org
Equity, Diversity and Inclusion: Four women whose pioneering contributions to science have been largely overlooked
Ethel Browne Harvey, Hilde Pröscholdt Mangold, Ida Henrietta Hyde and Marthe Gautier all made important contributions to developmental biology, but their names are largely absent from histories of sci...
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Colette Delawalla, PhD @cdelawalla.bsky.social · 27/01/2026
Wow. This is devastating. www.science.org/content/arti...
science.org
U.S. government has lost more than 10,000 STEM Ph.D.s since Trump took office
A Science analysis reveals how many were fired, retired, or quit across 14 agencies
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Pierre Osteil @pierreosteil.bsky.social · 09/01/2026
media.tenor.com
a man is looking at a wall of monitors on make a gif
ALT: a man is looking at a wall of monitors on make a gif
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Ina Sonnen @sonnenlab.bsky.social · 24/12/2025
Using fluorescence live imaging and an in vitro implantation model, we show that human embryo attachment begins with direct cell fusion via syncytin-2–MFSD2A interaction. With @hansclevers.bsky.social. Great work by @tnoordzij.bsky.social & @martinacelotti.bsky.social www.biorxiv.org/content/10.6...
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Máté Varga @mvargam.eurosky.social · 13/12/2025
I was today years old when I learned that there is a superb (freely available) documentary from 1961 on early zebrafish development by J.V. Durden. collection.nfb.ca/film/embryon... (1/2)
A still picture from the 1961 documentary on zebrafish development by J.V. Durden showing a 1 dpf zebrafish embryo.
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Zayna Chaker @zaycha.bsky.social · 19/11/2025
Such a treat to be sitting in the room where @denisduboule.bsky.social is giving a talk @fsscr.bsky.social meeting in Lyon! Exciting and insightful science ahead 🤯🤘
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Alexandre Mayran @alexandremayran.bsky.social · 17/11/2025
Happy to present the final version of our Cadherin and gastruloid manuscript, online at @cp-cellreports.bsky.social. www.cell.com/cell-reports... Initially in BiorXiv (www.biorxiv.org/content/10.1...) 1/12
cell.com
Cadherins modulate the self-organizing potential of pseudo-embryos
Gastruloids derived from ES cells mimic embryonic patterning through robust self-organization. Mayran et al. uncover that this competence depends on a cadherin switch regulated by Snai1-driven E-cadhe...
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Pierre Osteil @pierreosteil.bsky.social · 14/11/2025
Must read S.J. Gould "Wonderful Life" for all the details about the Burgess Shale and how it changes our understanding of evolution 🐚🪸🦀. Also great to get how science works. One of my favourite science books!! 📚
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Denis Duboule @denisduboule.bsky.social · 28/10/2025
Tomorrow Wednesday 29th at 11am, lesson #3 of @neilshubin.bsky.social guest Professor @college-de-france.fr on ‘The evolutionary origin of bones and teeth’. The second lesson is available @ www.youtube.com/watch?v=0B6y... . No registration, Free access, dentures accepted.
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The New York Times @nytimes.com · 06/10/2025
The number of international students arriving in the U.S. in August fell by 19% this year compared with last year — the largest decline on record outside of the pandemic.
nyti.ms
Nearly 20 Percent Fewer International Students Traveled to the U.S. in August
The data shows the steepest decline in August international student arrivals since the pandemic.
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Pierre Osteil @pierreosteil.bsky.social · 30/09/2025
Superbes images! @pflenne.bsky.social
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Astropierre @astropierre.com · 30/09/2025
Réponse de l'image-mystère : Pas de cellules de convection dans une étoile ici, mais, à une toute autre échelle, un organoïdes (amas de cellules) issus de cellules souches embryonnaires destiné à mimer (et mieux comprendre) ce développement précoce de l'embryon. www.insb.cnrs.fr/fr/cnrsinfo/...
insb.cnrs.fr
Le développement embryonnaire des mammifères : quand la physique rencontre la biologie
Le développement de l’embryon des mammifères est un processus complexe régi par des signaux biochimiques et des mécanismes physiques d’
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Astropierre @astropierre.com · 24/09/2025
Suite à la migration de scientifiques et d'universitaires de X, Bluesky est devenue une l'une des alternatives. Afin d'évaluer sa viabilité/pertinence pour la communication scientifique, cette étude présente une analyse à grande échelle de la diffusion d'articles scientifiques sur Bluesky. 1/5
Image d'un téléphone sur lequel se trouve le logo et le nom de Bluesky.
En arrière-plan, un papillon blanc sur fond bleu
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AFIS Science @afis.bsky.social · 22/09/2025
RAPPEL 📢 [Paris - jeudi 25 sept. à 19h00] Thérapies manuelles : où en est la science ? Ostéopathie, kinésithérapie, chiropraxie, étiopathie Une conférence animée par Sylvain Peterlongo, kinésithérapeute, accueillie par la mairie du 5ème arr. de Paris, et organisée par l’Afis !
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Stand Up for Science! @standupforscience.net · 17/09/2025
You asked for it! We delivered Quack-O-Grams to our members of Congress urging them to #ImpeachRFK, and get that Quack out of office! There's still time for you to get in on this fluffy, feathery action: Send your own duck at zurl.co/W1ZnB and keep the momentum going! 🦆
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